Mike Bloomberg has on many counts been an excellent Mayor. This was a guy who was a Democrat in the 1990s. He became a Republican to avoid the Democratic primary. I don't blame him. Then he ran for Mayor as an Independent. I have been an Independent myself since 2008.

I have had my policy disagreements with the Mayor, no doubt. The guy does exhibit a little bit of a class bias. But all along I have admired his entrepreneurial journey. He was a tech entrepreneur long before this city started producing those. He has been a remarkable person.

And his astounding business and management skills he has applied to the governance of the city, many times with great results. This has been a great city to live in.

But it is beneath him to take active part in the Democratic primary. For one, he is not a Democrat. I am sure the Democratic Party would love it if he were to join the party now, but I doubt he will. As a non Democrat and office holder it is unbecoming of him to play the role he has been playing.

If he keeps doing it, it is going to create a stink. His legacy is going to suffer for it. He should stay focused on governing the city. He should leave the mayoral election to the various contenders of the Democratic Party.

To be fair, I don't know much about Christine Quinn. I know her name, I have seen her picture, I know she is Speaker at the city level, and I think it is great that she is gay. But I don't know her, I have not read up on her.

But if the Mayor tries too hard, it is going to look like he or his people were the ones who planted that story in the New York Times that got Bharara all excited. A stink like that can cost a man his legacy.